Donde explica su modelo: Customer Development. Blank explica que el gran error de orientación de una startup es que se orienta a crear un producto (Product Development), en vez de a encontrar un modelo de negocio sostenible. Según Blank, “startups are not smaller versions of large companies. Large companies are about execution (what they teach you at MBAs), while startups are about searching for a sustainable business model. Large companies execute known business models; in contrast, startups search for a business model. Customer Development is a methodology to teach the process of searching for a business model“.